Gravity waves are produced when a mass accelerates
Indicate whether the statement is true or false
TRUE
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Three point charges are placed on the x-axis. A charge of +2.0 ?C is placed at the origin, -2.0 ?C to the right at x = 50 cm, and +4.0 ?C at the 100 cm mark
What are the magnitude and direction of the electrostatic force which acts on the charge at the origin?
If a source of light is approaching us at 3,000 km/sec, then all its waves are
A) redshifted by 1%. B) not affected, as c is constant regardless of the direction of motion. C) blueshifted out of the visible spectrum into the ultraviolet. D) blueshifted by 1%. E) redshifted out of the visible into the infrared.
A particle (m = 2.0 ?g, q = ?5.0 ?C) has a speed of 30 m/s at point A and moves (with only electric forces acting on it) to point B where its speed is 80 m/s. Determine the electric potential difference VA?VB.
A. ?2.2 kV B. +1.1 kV C. ?1.1 kV D. +2.2 kV E. +1.3 kV
The Andes and the Sierra Nevada Mountains began to form during the Mesozoic due to
A) the formation of the Atlantic Ocean. B) subduction of Pacific oceanic crust beneath North and South American continental crust. C) rifting between North America and Africa. D) meteorite bombardment in Mexico.